ainswoeth



(No Model.)

R. H. AINSWORTH.

QUTTERHBAD. No. 276,323. Patented Apr.24, 1883.

uw@ y @WM gi/M' l MM2/T y UNITED STATES PATENT OFFICE.

ROBERT H. AINSWORTH, OF MONTGOMERY, ASSIGNOR OF TWO-THIRDS TO J. THEODORE HESS AND GEORGE HOUSEL, OF LYCOMING COUNTY, PA.

CUTTER-H EAD.

SPECIFICATION forming part of Letters Patent No. 276,323, dated April 24, 1883.

Application vfiled August 5, `1882. (No model.)

To all whom 'it may concern:

Be it known that I, RoBER'r H. AINsWoRTH, acitizen of the United States, residing at Montgomery, in the county of Lycoming and State 5 of Pennsylvania, have invented certain new and useful In] provements in Gutter-Heads;` and I do declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it ap- 1o pertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

t This invention relates to machines for forming panels; and it consists in a peculiar construction and arrangementot the several parts, as hereinafter described.

In thisinvention the surfacing and the moldzo ing edges are separated into two distinct cutters, whereby much time is saved in adjusting patterns and the waste of time and material by grinding reduced.

In the accompanying drawings, Figure l is z 5 a front perspective view of my molding-head and cutters attached to an ordinary cutterhead and Fig. 2, a perspective view of the clamp by which the molding-cutters are secured to the molding-head.

A is an ordinary cutter-head. 'i B is-a molding-head cast and bored in a siny gle piece with the cutter-head.

,O C are ordinary straight or surfacing cutters without any molding-edge. A grooved 3 5 ange, b, is cast or formed on each of the top surfaces of the molded head.

D D are molding-cutters, the inner edge of a each of which its into and works in the groove of the flange b. These cutters are curved and 4o beveled as required by the shape and movement of the cutter-head A, and with reference to a proper co-operation with the straight cutters C C in forming a molding. The flange and l groove b are likewise curved, and the top surfaces of the head B are both curved and beveled to lit the cutters D D at any point or part. When the cutting-edge of one ot' these molding-cutters D D becomes unservieeable a new edge can be ground on, and this may be repeated till some two-thirds, it' not more, of the length of the cutter is gone.

It will be noticed that thewider ends ot' the cutters O O are so beveled and slanted that the point of the edge describes a line which overlaps the inner line of the cutters D D, and `so insures a cleaner straighter edge to the molding raised by .the cutters D I) than is practicable with the ordinary cutter, which is compelled to form the molding-edge by the mere angle of two cutting-edges. A round orifice, b', serves loadmit lthe revolving shaft of the cutter-head, and round threaded apertures b2 b2 retain the screws or nuts, by which the clamp E is held and tightened against the face ofthe head B and the outer edges of the cutters D D.

I am aware that revolving cutter-heads wherein the molding'cutters are detached from the surfacing-cutters have heretofiore been described; hence I do not claim sucha cutterhead, broadly. Y l Having thus described my invention, what I claim as new and useful, and desire to secure by Letters Patent, isy A cutter-head for'raisiug panels, consisting of the surfacing-head'A, surmounted by the molding-head B, with surfacing-cutters O O f and detached paneling-cutters D ll), the latter being heldin place against the anges b by the clamp E,substantially as herein described. 8o

In testimony whereof I affix my signature in presence of two witnesses.

ROB'I. H. AINSWORTH.

, Witnesses:

WM. W. HART, JN0. F. S'rEvENsoN. 

